Pipe and conductor coupling.



C. H. KAYSER. PIPE AND CONDUCTOR GOUPLING.

APPLICATION FILED APR. 13, 1910.

982,006. Patented Jan .17, m1,

l conductor to one of the hollow cylindrical .rubber washer F. lVithinthe washer F en- CHARLES H. KAYSEB, OF NEW YORK, N. Y.,

frisur orrion.

ASSXGNR LEO INTERNATIONAL ELECTRIC PROTECTION COMPANY, A CORRATIOJ 0FNEVI YORK. v

l?IPE AND CONDUCTR CULING.

Specification of Letters Patent.

Patented J an. 17, 191.1.

lApplication filed April 13, mit). Serial No. 555,13'6.

To all whom it may concern:

B e itknown that I, GnAuLns H. Karene, a citizen ofthe United States,residing at NewYork, in the countyv of New York and State oiz New York,have invented a certain new and useful Improvement in Pipe andloiiductor Couplings, ot which the following' is a specification.

' The invention is a coupling 'for connecting` adjacent pipe sectionsand also elec trical conductors inclosed. in said. rsections.

It is especiallyl applicable-to the long thin metal pipes ot' smalldiameter which areused in connection with Ihiffh temperature alarmsfandwhich operate bv the produc-' tion of impulses in the air confined inthem, or bv theprcssure of said confined air, ldue to the increase 'of.surrounding temperaturethe said impulses or air currents their actingAupon audible or visual alarm de vices. Where such pipes also containelectrical conductors 'for controlling' certain other,alarnis, rtheproblem is not onljv Vto connect. the abi'ittinglr ends ot the pipesections, but also those ot the wires inclosed in them;so that tightjoints will be made, preventing the escape from the pipe of the air whenunder pressure, and good'electrical connections will be establishedbetween the inelosed Wires. T his, my present device accomplishes.

In the accompanying drawings--Figure l is a longitudinal section of' mycoupling, and Fig. 2 is :t transverse section, showing,` the mode ofconnecting the end of the wire terminals.

Similar letters and numbers of reference indicate like parts. l

A and B respectively represent. the end portions of adjacent .pipesections to be coupled together. Upon the section A is rstplaced a metal'sleeve C which tits closely on said end. and over part of. its t lengthis of enlarged diameter, so that the cxtremitjv of the metal pipe can bctiangcd over, as shown at'D, and so secured in said sleeve. lVithin thesleeve C is inserted firstan annular leather washer E, and ther'.

ters the end of a tlanged hollow vcylindrical terminal G of conductingmaterial', preferably metal. The inner side of the Harige is beveled. orundercut. in the wall ot t reninal Gr is an openingthrough wnic'h pa'daw the pipe sections .ti

the uncovered end of the wire H contained in the pipe section A. Saidend is secured to said terminal by winding the saine around the outsideof said termin-al., as shown in Fig. 2. wire ll then lies in the'ang'letoi-ined by the undercutting of the ange of lterminal G..

Precisely similar parts at G', F', E', C are associated in like mannerwith th'e enc oli pine section B, so that when the pipe The woundportion et ends are approximated, the outervface terminal' G- on sectionA' comes in Contact with the outer tace of terminal G" on sec-- tion B.Y

Upon section B is an externally threaded coupling sleeve I, and uponpipe'section .is sleeve J enlarged internallyv to receive tliepartspreviouslydescribed, and then in ternally7 threaded to engagewith-sleeve l.

lilhen the sleeves l. and J are set up to andy E together. the leatherwashers lil, llf are forced' agaii .t the pipe langes C, G. and thesharp beveled outer circumferential edges ot terminals G, G are forcedinto the rubber waslie 1F, thus forming close joints which p 'vent anyescape et the air; contained wi in the pipe. Electrical connectionbetween the wire H insection A and the wire illf in section B is thenalso established through the contacting metal terminals G, G'.

l claim:

1. rlwopipe sections having` shouldered enlargements at their 'facingends, elastic packing` rings seated in said enlargements., hollowcylindrical terminals seated in said rings and having circumferentialtianges, and conducting wires in said .pipes extend ing1 throughopenings in the walls et said terminals and wound around said terminals,between said franges and said rings.-

ln combination with abutting` pipe sec tions and a coupling devicetherefor, two hollowcylindrical terminals interposed and supl'iurtedbetween said sections and hav ing openings in their walls, flanges onsaid terminals having their outer faces beveled. elastic washers on saidterminals, and wir in said sections passing throupgfhv said terni nalopenings and wound on theexterior oit said terminals between saidtlanges and said washers said sections sleeves sui ported on saidsectio11s-and extending over l Washers and terminals, and a correspond-10 :nl-l flanges, elastic washers disposed in said i! ingly threadedsleeve on the other pipe sleeves and beziring on said Hanges, two lsection. hollow cylindrical terminals seated in Said U n testimonywhereof I' have aixed my washers and having flanges received besignature in presence of two Witnesses.

tween the opposing faces of sziid Washers CHARLES H. KAYSER. andrespectively connected electricallyv tc fitnessesz said4 Wires,athreadedsleeve on one of said GERTRUDE T. PORTER,

pipe sections inclosing said flanges, sleeves, MAY T. MCGARRY.

